The researchers found the result by studying a tiny, jiggling membrane. Their experiment could lay the groundwork for further tests of the laws of thermodynamics at the tiniest scales.
Human laughter may trace its evolutionary beginnings to vocalizations made during play. This type of "laughing" is found in many mammals and even in some birds.
Evidence of what may be the youngest eruption seen yet on Mars suggests the Red Planet may still be volcanically active, raising the possibility it was recently habitable.
A NASA-funded study is giving scientists insight into how "night-shining clouds" form in the upper atmosphere — and the role that growing space traffic plays in the phenomenon.
For the past five weeks, Perseverance has been focused primarily on supporting and documenting the flights of NASA's Ingenuity helicopter. But the rover has been doing some science work, too.
A rare type of plutonium has been found in the crust below the deep sea, offering new clues as to how heavy metals form in star explosions and mergers.